A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 6220-01-642-8678
NSN 5960-01-649-1341
NSN 5985-01-472-3504
NSN 6645-01-539-2920
NSN 5925-01-394-9510
NSN 6610-00-211-9095
NSN 6650-01-379-8012
NSN 5990-01-544-0364
NSN 6110-01-120-7652
NSN 6130-01-646-7150
NSN 6220-01-044-6940
NSN 6110-00-331-8472